| Publisher | OReilly Media | ||
|---|---|---|---|
| Format | 1.1MB PDF | Date added | 03 Jul 2002 |
| Topics | VoIP - IP Telephony, Industry Standard Protocols | ||
| Downloads | 124 | ||
This paper provides a technological overview of the Session Initiation Protocol (SIP) that focuses on its ability to enable VoIP. If person takes the time to read the SIP standard, Request For Comments (RFC) 3261, he or she will notice that SIP can do much more than set up basic calls. Rather than writing an exhaustive reinterpretation of the normative statements found within the standard, it seems more useful to explain SIP in its simplest form. After reading this paper, one should be able to read through a SIP call flow, interpret a log of the message text, and gain some new insight into some of the activity that transpires within VOCAL when users pick up their IP phones and call one another.
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